5. Christmas Tree Rainbow LED for micro:bit(EF03420)#

5.1. Introduction#

The christmas tree rainbow LED, with 6 coding LEDs,can help you to decorate a beautiful chritmas night.

5.3. Features#

In christmas tree shape, adapt to the christmas scene With coding rainbow LED for any colour you like. With crocodile clip lines, no need for a expansion board

5.4. Parameters#

Items Parameters
Name Christmas Tree Rainbow LED
SKU EF03420
Input Voltage DC 3.3~5.0V
Size 75.93mm X 50.00mm
Net Weight 6.5g

5.5. Quick Start#

Preparation#

1 x Chritmas Tree Rainbow LED 3 x crocodile clip lines(Please prepare by yourself) 1 x micro:bit(Please prepare by yourself)

Hardware Connect#

Connect the black crocodile clip line to the GND port of the micro:bit, the other side of the black crocodile clip line to the G port of the christmas tree rainbow LED. Connect the red crocodile clip line to the 3V port of the micro:bit, the other side of the red crocodile clip line to the V port of the christmas tree rainbow LED. Connect the yellow crocodile clip line to the 0 port of the micro:bit, the other side of the yellow crocodile clip line to the S port of the christmas tree rainbow LED.

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Software#

Step 1#

Click makecode https://makecode.microbit.org/#

Click on “New Project” and set a new Project.

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Click on “Advanced” for more code blocks and click the Extensions at the bottom of the column.

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Serch “neopixel” and add neopixel as a codebase.

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Step 2#

Snap “set strip to RainbowLED at pin with leds as” from RainbowLED into the on start. Set pin to P1 with 6 LEDs in RGB pattern.

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Step 3#

Snap the strip rotate block from the RainbowLED under the forever. Set the rotate pixels to 1 and set the LEDs change its colour one by one. Then, snap a strip show block for colourful light.

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Program#

Program link:https://makecode.microbit.org/_Ukp8C5M2dbr2

You also could directly download program by visiting website as below:

Result#

The christmas tree rainbow LED glows colourful light to bring beauty to the christmas night.

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5.6. FAQ#